X  roy e



Dea

LE ROY E. JOLLSt mAcHsNE TOOL. l j

FILED AUGH: i922. u 6 SHEETS-SHEET 2. 1

Dec. 19,1929. Lf. any E, was,

MACHINE TDOLt m50 man, 1922.

o sHEETS-SHEE; 4.

Dec. 19, 1922.-

- LE BUY t. JOLLS.

MACHI'NEWGOL.

` vNLE!) AUG. H, 1922.

' l Dec. 19. 1922, Re. 15,507

LE ROY E. MLLS.

MACHINE TOOL. FILED Auml, 1922. 15 SHEETVSHYEU a.

W "lum Reissued Dec. 19,

umfso STAT Ese N Re. 15,501 ATENT olmos.'

LE ROY E. JOLIES, OF DETRGIT. MICHIG'N, ASSIGNGR TU PACKARD MOTR CAR COMFANY,'OF DETROIT, MIGEIGN, A CORPORATION GF MICHIGAN.

Original No; 1,'3'9229156, da-ted Novemb' Eiscreme Tools.

l5, 1.921, Serial No. 241,042Lle June 26, EIMS.` Apgilieaioxi for x A reissue ined Aug-usi 11, 1922. serial NG. 531,274. v

To (1N `eri/'mmy v'itilzayconfermi e substantiz ll)Y on tlie line Lor-3 of'll`igiiie l;

Beit known that l. Ln ,Hoy ljilomis, a Citizen 0i tl1e United State residing et.' Detroit,'lliyxie"`(,`ol1.lity, intlie Stute, el' 'Michigaln have invented certain Anew and useful Improvementsin"Machine Tools` of which kthe following; is` u sliecilieation.

The present iiii'ent'ioii relates to zi me chine tool and is illustrated and described Ans embodied in a nu'icliine 'for .finishing the surfaces bounding tlie compression recesses formedein the detachable cylinder "needs of hydrocarbony yeters. to be unile however. tl he invention may lie embodied in otlieiv "ueliiness The objects ol" theFinyention are to provide :in ai'rarigement'of tool und wml( su?- ports and Ineens'efoi' actuating' lie same which permits airexceedinsli' strong coniveigjlit or struction withoue unuecef ry hulk; to provid-' i machine 'for simu neously finisliinw i ]i'liiiility of eoiiipre recesses of :i `eyliiuler lie-aid; to giovine u profilingmachineiritli ai plm'aiity (al tools and means for operntiugall ofV them simili taueously 'to provide novel ineens For siniulV tzlneously -Inoviuzij .the jvoi'lrx and tools in different directions toifxngiketlie desired eut,

or cuts on` me` `wo'l to provide zi niaciisie in whiclr the' siforl siil'iport um. 'ool are so reciprocated relative to. ,eaicli.i-itl1er es to cause the t'oolutc; taverseeclosed path on the work; to providfsueli .a uuu-hin@ in which the Xi'QI'l'ViQiippQrt.is above tlie tool; to provide ar machine boring-5' utf leest wie tools and nietmsi mi uvsingle sli;` Minimi ing tliexn inl opposite directifAMJ Y Figure 1 is a front elevationo @machine constructed in acoiclii'n'cef'witli, tthe present invention, certain plants le .ngllqroken'ewam Figure 2 is a Ir"`r`,fel l 4 chine; we .Q 171)..

Figure 3 is ai sectional elevation taken ieii 4 the mui Figure 4 is a transreise sectional elevation teken sulistzxntiellyon tlieline 4 4 of,

Figure l nl* igureV spindles: Figure motor. illuslrzzsiug; tile, forni of lie conipression recessesR tie surfer-esule wliicli are liuislzed by the present machine; und

lfiguie 1l is ii ilii'igfrnnimntic View illustrating the gmli of lie tool ieleiife lo lie. woilt, showing that ull; lille surfaces bounding a couuu'essimi re-essere tinislied by the tool.. llei'erring to the drawings. it will be seen fluit ille machine eomilirises; :i lioiloii' base 2U l'uii'iug :il lie `ends of the lop 'thereof tlieiwo upriglits lfs1ippoiiiigf the table 22. L workliolderor summit which includes e.

.rectangular freine' 25% Vmounted on the inlile, 2') for i'eeiprmjuting.movement trains- .veisely there-irl. the dove-tail. .ways f'being provided 'for this purpose. inugfulzuframe ".45 mounted -wiiiliin 'the verw il direction. For this purpose the inner freine is 'formed with lute-ral iiauges 26 which are sliduble yin the wuys formed' in lli@ outer frame. The lowerol bottoni memlier El` of the inner frame is formed with the two apertures Qllmd .5750, ('igure und carries tlii-eexpails B2, und lie upper sun' :inves of' which' are inclined relative to lie ,bottom memliei' 28, illuetratecl at (L 1n FigiiiesA :ind-8'. The pads are secured to thenieinber 28 in any suitable manner, is by means of screws 35 and flow/el pins 35. Asshown in Figures fi-"and 8., the bottom surface of the compression recess in the cylinder head is at an angle to the bottom Je is :in elevation oi one of thel A 3f-is' si plan sectional View taken` .substantially on the line 5-15 oi' .Figure surface of Vthe head roper, and the in. verselyof the machine, the work willal'waysY clined pads 32, 33 an 34'are provided so be located accuratelyin the same position that the bottom .surface of the compression relative to the tools. recesses are positioned in a plane perpendic- Referring to Figure l0, it will be Seenthat ular to the axis of the tool. It is underthe three compression recesses at the right 70 stood, however. that' the invention is not of the transverse center line c.c are symmetlimited to supporting the work in this parrically located with respectV to the other ticular manner, but that said means may be recesses on the other side of said center line. varied so that the work will be arranged in F or the purpose of finishing the entire surproper position relative to the tool. Aface bounding these'recesses, in the present 75 For the purpose of clamping the work embodiment of the invention, the work is against the pads the upper member of the reciprocated transversely ofthe machine and inner frame 25 is provlded with a pair of simultaneously the tools, one being provided spaced threaded rods 36 which at their for each recess, re moved in a path at an lower endshave the heads 37 carrying the angle tothe direction of movement of the 480 pins 38 adapted to engage in registering' re Work. The resulting path of the axis 'of a cesses in the work. The rods 36 are adtool relative to the work is illustrated bv justed vertically by means of the hand the .d otted line d in Figure l1. Some of the wheels 39 projecting at the frontof the mapositions of the tool are illustrated in dotted chine and mounted on the shafts40 which f lines and it is apparent that the entire bot 81S carry the worms 41 (Figure 2) 1 meshing tom surface b of the recessisnished by with the worm wheels 42, which are threadthe top of the tool and the side o`r'ed sured on the rods 36. It will be seen, as rotafaces are' finished by the cutting e ges at tion'of the rods 36 is pre'vented by enggethe. sides of the too In this manner the v2li ment with the work, when the hand wheels ent1re bounding surface of the recess `isv fn- 90 `9 are turned the worm wheels 42will be iShed'. rotated and act as nuts to raise or lo'wer the The means for moving the tools in their rods 36. It is desirable to adjust the position of the are located beneath the table 22 and within work vertically relative to the tools and for the hollow base .20. The rear wall of the 95 this urpose t e inner frame 25 is mounted base-QU 1s formed with a supporting memfor sliding movement in a vertical direction bei` 55 extending longitudinally of the ma l as revously described, andi any suitable Clune.` A bar 56 is'secured to and su ported mec anism may be' provided for adjusting by the member 55,*by means of the lts 57 $6 the inner frame. As shown, ashort shaft and 58 and the projection 59formed on the 100y 43 extends through theV up er member ofthe bar and seated in the recess 60 in the mem` frame 25 and is secure therein against ber l5,5. At its top and bottom, the bar 56 rotation as by the key 44, longitudinal move- 1S fOImed With the flanges 61 21nd 61'- A ment bein prevented bythe collars 43a series of U-shaped members 62, one foreach and 43", lle upper' portion 0f this Shaft is tool, are arranged as shown in the drawings.V 105 threaded and engages in the wormwheel'45, vEach of these members 62 has one of its the latte!- bein rotated by a WO1-in 46 (Fig. arms 63 formed with a seat 64 for the flange ure 2) on the siiaft 47 having the hand wheel 61 and the other arm 65 formed with a seat '48 at the front-side of the machine. In order 66 for the flange 61', whereby the U-shaped 45 to preventY any play or looseness of the members are supported andA carried by the 110 flapges 26 inthe Ways 27, each of the side bar 5,6. In order tr: securely hold ythe memshaft 49 (Figure 9) which at'fthe' front of plates 67 and 68 secured to the arms 63 and the machine carries a hand wheel. Each 65 IeSpeCtlVely'tO Clamp the flanges 6I and 50 shaftis threaded at its inner end and ex- 6l' between Said plates and the Seats frllmed 115 tends through the 'elongated aperture 51 in 1n the arms. Inni-der to hold the members l the flange 26 of the inner frame (see Figures 62 at their bases m proper-spaced relatioma 6 and 7). An elongated recess 52 is formed Vrod 69 extends through the same and harsthe in the rear of the flange 2.6 and a-nut 53 nuts 70 threaded on the ends.- A s clearly' 55 threaded 0n the end of the shaft 49 is fitted shown in Flgur'e 5, the members 62 are ar.- 12o in the same, so that it is held against rotaranged. in two groups of'three each. One tion but may slide therein. It will be seen, group 1s spaced from theother by means of therefore, when a hand wheel 5() is rotated the spacing sleefe 7l arranged aroundlthe in a direction to screw the shaft 49Vinto the rod 66, and the members 62 of each group fare nut 53, the flange 26V will be held in contact maintained in proper spaced relation by 125 with the wall 54 ,of the way 27. In this 4means of the abutting-bosses 72. j manner as the `pins 38-position the work The arms 63 and 65 of each of th'e U; relative to the inner frame and the means shaped members. 62 is formed withrthe just described .positively secures the inner alined bores 73 and 74', and a spindles,` 75 is 65 frame always 1n the same position transp-I- mounted in each of said bores, these .spin- 130 l./ dies heine Surrounded by the b-ushingre' T0 and TT in the hores. lineh ot' the spindles To extends troni the hottoin oi the hottoln arm to the table 22. .it :i ooinl; 'ust abovey the urrn fill einjh spindle ie Vloi-ined witlrzr shoulder i5 und ai roller thrust` bearing` TS is interposed between tl Shoulder :ind the top ot the erin o3. so that un.' donnwiirtl preaeure on this sleeve is carried through thebearing' TS to the U-shziped member 02. worin wheel 'i9 is secured to enchot the spindles for rotation therewith h v splines.

T5 hes u nut threaded on the Sinne. whieh hears against the lower side ot' thenrm (55, and the top of enrli epindieie'teperedu shown et t inl Figure -1.- A tool support in the forni et n lever ir pivoted onr this tapered portion Sei of ear-eh. ndle und a, thrust bear-l ing 'is interposed between the bottoni ot the lever :ind the spindie so that the weight of the lever is transmitted through thehearing on to the spindle. The ripper tapered end 84 is;l projifided with fi, radial roller bearing Sii. and aftlnrnet nearing 87. Each lever comprises tivo'arnm one or? winch 88 extends to the right from the shaft es viewed in Figure 41., and this erin ceri-ies 2 1 roller 89 for :1. pin-pose presently to he devribi-ad. The other rin 00 et each tool support rote tively cari-ien Itool holziler 91 and e tool 925 is adapted to be eeeured to the holder, n thrust ne-firing "93 being; provide-1l to Gerry any or( il thrust of the tool to the erm. A

projecting bearing' plate 0% is secured to each erin end ie slidingly supportedby' the block 95. .For tine purpose' the bleek 1s termed with n recess endwvearpletes 97.

and 0R interposed between the sides oi. the plate 94 :und the Welle of thereeess, thi-eee plates being edjnstable; ne by Ineens of the set screws 00 and 100. shown in Figure 1 the. bei supported at its ends.

on th... ves MF1-[ind 102,. imite 103 Missing through the har and eleewefe and euring/the saune to the topoi'. the base. The lower end ol euch tool holder 91 has zi gear 104 secured thereto ior motion therei` ith, .and this rear ie in mesh with er ,dier gear 105, which in urn meshes with the gear 89, on the Spindle T5. It will he eeen, therefor.. when the worn; wheel T0 rotetxl, the tool holder and tool will also he rteljed throughthe r-,oinleetionfi described. V n i .i

Referring! new 'to l" gere '1.y it will be Seenl that two shafts 10o and `107 extend longitri-:liniilly or' theiies'e ot' thei-melohine, the shaft 10i' being urn the shaft i M dvertically over. 11111.95 not? tended por" letter Shaft hase Worm 119 which meshes tions. the lend o1" the thread on one portion being opposite to that of the other. .Like wise the shaft. 10U has tivo Athreaded portions the lend ot' one portion being' opposite to that ot' the other.v The shaft 1071s extended outside ofthe huso :it thil left ot'the nnuhinennd ha its outer end mounted inn bearing infthe hrneket 10S. Apulley 105) is rotatively Inonnted on`tl1e shaft und zi clutch ,100" is provided for `rotatively Connecting the pulley and shaftflll. The shaft 106 is driven trom the shaft 107 by means ot' the meshingF gears 110 and 1108. antigeni' 110 in turn meshes4 with another geni* 112a whit-h drives the oil pin-np for the oilingqr system. Referring to the threewoi'ni `wheels` ot' the left hand 2group of oolS shown in Figure 1,' it will khe observed thutlthe end, Worm Wheels 19 are` driven troni'the shaft 10T, While the Iniddle worm wheel 79fis driven from the shaft 10C. However, as the lead of the threaded portion vof shaft 101i j'nst below that ofv shaft 10T'is 'opposite to the hittery these three worin wheels will all he roter-ed in the saine direction, and consel quently the three tools `of the left hand group will eli rotate in the same direction. The worm Wheels of the right hund group ot tools :ire arranged in the same manner iis the lett hand, but :is the threaded portions ot' Athe Shaft 107 and 106 have n lend opposite Jto that of the portions already described,r the, worm wheels, and.. consequently the tools of this right hund ,grou i will be driven-in the opposite direction. .y displacing the middle .worin Wheel of each group downward. Withrespeot to the other two, the three ytools are permitted to be arranged. closer togethery than they would he if the worm wheels were :vll drivenfrom a single shaft, Furthermore it, Will be observed, as the two worm Wheels driven by the slriift 106, are driven by threaded portionsl having 'oppositel leads, there Will be no end thrust on the ehnt't. Fora similar reason there will be no end thrust. on the shaft 107.. v A

Directly under the arms 88 `ofthe tool supporting levers is n shaft 111, which .fzarries two earns 112 and 113, erich ternir-.d with the cuni grooves 114 and 1155 these groovesI heiner opnositely inclined; as shovmin Fig-i nre 2. Eue'hof theA rollers S9 carried ony tire arms 88, is adapted to engage in one of the lever carrying the tool- Support is oeeile,` lated to and fro rind `consequently'tlri'etool support and the tool arebmoved to andfro. inni` curved path; this `p`1th being substantialy at right angles.relhtveY to the direqtion ot movement of the'workv support. For the purpose ofrotating the shtt 111, the end of the shaft 106 (see .Figure '3) carries a pinion 115 which through the idler gein' lidrives n gear 117 on a shafty 118. This the grooves` of the earns.- In this nianner `carrying gear |112,

open permitting the oil to with the worm Wheel 120 connected to rotate with the substantially' vertical shaft i The upper en'd of this latter shaft has a wor-i 122.in mesh with a vvorm wheel 123 on. the shaft l1l. If it is desired to change the angular velocity ratio between the shafts 106 and. 111, the pinion 115 may be changed` theLidler 116 being mounted on a slotted pivoted arm 124 in the usual manner for this purpose. It will be observed that as the cam grooves positely inclined with respect to those on cam 113, the axialv counterbalance that of the other, so that the shaft 111v has no longitudinal thrust in its bearings. It will also beobserved that in the form of cylinder head shown in Figure 10, the recesses on one l are not varranged in exactly the same WayY in the head, that is, the major axes of these recesses are not parallel. The result is that when the machine is designed to operate upon this particular form of head, the cam grooves 114 differ slightly from each other and the same is true of the cam grooves 115.' 'l

The Work support is adapted to be reciprocated in timed relation with the movementof the tool.'l As shown the shaft 111 has a gear 125 oneach end thereof driving a gear 126 on each end of a shaft 127 arranged parallel to the shaft 111.Y Outside the gears 126, on each end of Ithe shaft 127 is a cam 128 which is formed with a cam groove 129. An arm 130 is secured to each side of the Work support near the bottom thereof and carries a roller `131 which Works in the cam groove 129. Thus as the tools are reciprocated toand fro, the work support will be moved back and forth by means of the cams 128. By properly designing the cams 112, 11'3 and 128 the path of the tool relative `to the work may be as desired. The drive 111 may be for connecting shafts 106 and so that the arranged "Within the casing '132, gears will im! For' the purpose of the bearings for the spindles 75,v each is made hollownearly to its. upper end, and the bearingportions have the radial oil holes 1324 i is fed to said bear- Y rnmpl (Figuresl and 4) is connectedtodri en by the shaft 134 and its-suction pipe, 135 takes the oil from the bottom of "the base 20 through vthe strainer 136. The discharge pipe 137V of the pump has a connection to one end of a manifold 138 which has six nipples 139, one for each spindle. `The discharge pipealso has a relief `valve 140. Thus oil continually forced through the holes 132 of time spindles and drains back to the bottom of l1the base. If the pressure of the oil is exceive, then relief valve 140 will discharge directly properly lubricating of the cam 112 are op` T0 thrust ot' one cam Willy side of the center line be a menace to the operator.y

into the base of the machine. Obviously other bearings of the machinev might be luricated by oil from the pump if desired;

In the operation of the machine the hand wheel guideways 27, so that the frame justed up'and down but Without any looseness or play. The hand Wheel 48 isthen tated to raise the frame 25. which in this instance'is a cylinder head casting is clamped against the pads 32, 33, and 34 by turning wheels 39 and the frame moved downward to feed the work against the tools bv operating hand Wheels 48. It is to be un erstood, although the tools might cut out the entire recesses, in the embodiment of the invention illustrated, the tools merely finish thesurfaces bounding the re-v cesses, the recesses having head. The work is -then fed downward against the tools until the bottom member 28 of the inner frame 25 abuts the bottom member 141 of the frame 23, thus accuratelyl determining the `position of the bottom of the recesses with respeet'to the tools. The work support 23 is caused to reciprocate by means of the cams 128 andthe tools are rocked about the axes of their associated spindles by means of cams 112 and 113, so that each of the tools moves ina path substantially at right angles to the direction of re'-r ciprocation of the work support. The cams 128. 112 and 113 are designed so that "the path of the'tools with respect to the work is such that-.the tools will give the proper outline to the `recesses and will also finish the entire bottom surface thereof. As previously described the bearings for the spindles 75 are lubricatedby oil forced yto the s'aid bearings by the pump 133.

Although a specific embodiment '.of the inited to the exact construction illustrated but been cast in the i that changes' and modifications may bemade which come within pended claims.

Having thus described my invention what the scope of the apters Patent is':

machine for simultaneously finishing the cylinder head, means for rotating said holders, rotatable means for moving said claim as new and desire to secure by Let- 1 der head.

path Within one or the reeesses of the cylin- A machine for simultaneously linisliini;r a plurality oriC compression Vrecesses in ai cylinder head ineludingy in con'ibination, a support for. the cylinder head, a plurality or' tool holders rotatably mounted and spaced a distance corresponding to the recesses in the cylinder head, a device for inovingsaid support and holders relative to each other in a direotiou parallel to lthe. axis oi' said toolliolders whereby the tools in saidiholders are brought into operative relation with the cylinder head, nieansl'or rotating said tool holders. and means for moving' said support and tool holders relative to each other in a direetion at right anglesto the axes of said holders, whereby the axis of' each tool holder is caused' to trace a closed path within one of the reces es of' the cylinder head.,

3. A. machine Jfor simultaneously insliing a plurality ol compression recesses in a cylinder head including); in combination, a support for the cylinder head; al plurality ol tool holders rotatably mounted andspaced a distance rorresiiondiiigr tothe recesses in a device for moving said l support and holders relative to each otrier the cylinder head,

`iii a direction parallel to "the axis ol saidA tool holders whereby the' tools in said ladders are brought into operative relation with the cylinder head, means lor rotating said tool holders,rotatable means lfor moving*r said support to and fro in a'direction siilistain ,tially perpendirula r to the axes ol' said hold ers, and other rotatable iiieans-l`or moving;r each of said holders tovand fro iii a direc-` tion transverse to the last named direction of movement olI said siiiiport, whereby the axis ol each of said holders traces a closed nath ivithin one olt the recesses'o'l therylinder head.

4. A marhine for siniultiirneously linisliinsY a plurality ol compression 're in a cylinder head imflnding in' combination, a work holder for supporting' a cylinder head, a plurality of tool holders spaced a distance corresponding' to the recesses the eylim f head. means 'for rotating said tool holders, means 'for moving* said work holder to and liro in a direction perpendicular to the z ol said tool holders,rotatable means seiiarate from said last mentioned means 'for moving each ol' said tool holders to and fro iu a direction substantially perpendicular and tool holders relative to each other to bring the tools in contact with the work.

means for rotating. said tool holders. rotatable means lor moving' said fork holder to and fro insa direction perpendicular,to-thc axes of said tool holders` other rotatablev means Vfor moving cach o1? saidiool holders to and i'ro in a direction substz'intially pcr-V pendicular lo the direction ol'-'iiu iife`i`iieiit of said u'orl holder, a-nda driving" ineinlicitro-in which each oli said `meansy is operated) (3. machine for simultaneously,finishingV a plurality of compression recessesr iiiai cylinder heath ini-hiding in combination, 'an work holder tor the cylinder head, a lplurality of to'ol holders rotatably mounted andl siiccd a distance correspondinter to the couif giri 'sion recesses of the cylinder l iead',igear. mechanism for lii'ilders. a drivingunember lor operating said fear mechanism, means operated from vsaid driving member lor moving said work holliler lo and fro in one direction, and means separate from said last mentioned means and also oi'ierated Vfrom said drivingr member for moving each of said tool `holders to and l'ro in a direction transverse of the. last'nained direction. l i,

I. machine tor simultaneously finishing. a plurality" oi' compression rccesscs'inl acylindcr head including in combination,,al work holder for the cyllnderfhead, a'i'ilui'ality ol tool holders rotatably mounted and spaced a distance eorrespoiu-lingi` to theicoinpression recesses of the cylinder head, gear. mechanism for rotating' each' oi said 'tool holders,V a driving: member for operating said gear mechanism, means operated from said driving' member for moving said4`woigliy iliolder to and 'fro in one direction. aiidfroatable rain means also operated from Isaid driving member lor movi-ng each ofisaidn tool holders to and iro in a direction transverse of the last named direction.'

o, i machine 'i'or simultaneously finishing a plurality ol compression recesses iii `,a cylinder head, including; in combinatioinl;a work holder ior the cylinder-head, a plu raiity. of tool holders rotatably mounted and spaced a distance corresponding tothe romiiression recesses ol' the cylinder head, gear mechanism for rotating,r each of said tool holders, a driving said gear mechanism, rotatable cam incaus;` operated froid said driving meinl'ierfor.A movingr saidy work holder to and lro in one direction, and rotatable cam means,y also) meinlior for operating.

lll)

operated troni said driving' member"foriv a direction substantially perpendicular to the axes of said holders, and other rotatable.v means for moving each ofsaid holders to and` fro in a direction transverse to the last named direction of movement of sald support, whereby the axis of each of said hold'- erstraces a closed path Within one of the recesses of the cylinder head.

10. A` metal working' machine including in combination, a work support, a plurality of tool holders, a gear wheel arranged concentric with and secured to each of said tool holders, a driving member, means operated from said member for simultaneously rotatin said gear wheels andtool holders, rotatable means operated from said driving member for moving,r said support to and fro in a direction perpendicular to the axes of said tool holders, and other rotatable means also operated from said drivingr member for moving each of said tool holders to and fro in a tation of said. shaft for rotating each of saidr direction tranverse of said first named direction, whereby the axis of each of saidtool holders traces a closed path on said work support.

'11. A metal Working machine including in combination, a shaft, means for rotating the same, a slidable work support, mean rotatable lbv said shaft for sliding said support to an fro Iin one direction, a plurality of tool holders arranged in lineand spaced apart, each of said holders being rotatable about an axis perpendicular tothe direction of movement of said support, other means rotatable from said shaft for moving each ofsaid holders to and fro in a direction transverse of the direction of movement of said support, a shaft, means Jfor rotating the Sallie, and gear mechanism operated by rotool holders.

12. A metal working machine including in combination, a slidable work support` a shaft, cam means operated by said shaft for sliding said support to and i'ro in one direction, af'plurality oi' tool holders arranged in line and spaced apart, c xch et said tool hold- -ers being rotatable about an axis perpendicularcto the direction of movement of said support, a second shaft and cam means oper* ated thereby for moving,rv each of said tool holders At0 and fr(` in a direction transverse of the direction gnmovement of said sup-V port, a third shaft and means operated thereby for 'rotatingI each of said'tool holders,

and means for simultaneously rotating said shafts.

holder, a tool holder, means for moving one4 of said holders toward the other to bring the Work, rotatable the tool into contact with means operated from said member for movi ing said work holder `to and fro in one direction, other rotatable means for simultaneously moving said tool-holder to and fro in` a direction transverse of the direction of movement of said work holder, whereby the axis of the tool holder traces a closed path on the work holder, and means for rotating said tool holder. a

14. A metalworking machine including in combination, a slidable Workrsupport., a plurality of tool holders, a shaft and separate rota-table means operated from said shaft' tor simultaneously rotatingsaid tool holders, sliding said support to and fro in one direction and moving eachcf said holders` to and fro in a direction transverse to the direction of movement of said'support.

15. A metal Working machine including in combination, a slidable Work support, a plurality of tool holders, a shaft, separate rotatable means operated from said shaft for simultaneously rotatingv said tool holders, sliding said support to and fro in one direction and moving each of said lholders to and fro in a direction transverse to the direction of movement of said'support, and' manually operated means for moving the Work Support and tool holders relative to each other to bring the tools in contact with the Work. 16. A metal Working machine including in combination, a slidable Work holder, a. rotatable t'ool holder, means or moving one of said holders toward and from the other in a direct-.ion parallel to the axis of said tool holder, a driving member, and separate rotatable means operated from'said member for rotating said tool holder, work holder to and fro in one direction and moving the tool holder to and fro in another direction.

17. A`metal working machine including in combination,- a worlcholder', a tool holder, manually operated means for moving one ot said holders toward and 'from the other, means for rotating the tool holder, and rotatable cam means for moving the work slid-ing *said .19. A metalworking machine including in combination,I a Work support, a tool holder, .mechanism for rotating said holder, a rotatableeam for moving the holder to and fro in `one direction. a cam rotatable/ about an axis different from theaxis ot' said first named. cam for moving the work support to and f-ro in another directiomand a driving meinberi'or operating said mechanism and said cams."

' 2l). metal Working machineincludingr in Combination, a work support, a rotatable cam' toi-moving said support to and fro in one direction, a pivotally'mounted tool support. a tool holder" carried `by said support for rotation about an axis eeeentric'and parallel to the pivot axis ofthe tool support, a rotatable cam for roekinev said tool sii i )ort to i cause said tool holder to move to and tiro in a direction tansverse of the direction ot" movement of the Work support, a driving membeigaml meansoperated by said mem ber for rotating said eamsfamlsaid tool holder. f l' 2l. A metal wm'lging machine including iii 155 combination, a worksupport, a rotatable cam 'for moving said support to and fro in one direi-tion, a pivotalh7 mounted toolsnpport` a tool holder carrie( by said support for rotation about an axis recenti-ie and parallel 40 to the pivot axis of the tool support, a rotatable cani for rocking said tool support. to canse said ltool holder to move to and fro in a direction"transverse ot the direction of 'movement ot' the. work support, av gear eoaxial with said tool holder for rotating the same, a driving membeigjand means operated from saiddriving member for rotating said gear and said cams.

22. A profiling machine including inv comhinatiorn a work support, tool holder. one

of said parts being mounted Yfor rectilinear reeiprocatory movement. and the other for rei-iproeatorv movement in aeurved path across the other part., and means for reciprocating said parts. i

23. metal working machine including in combination, a work support, a tool support pivoted for rocking movement about an axis intermediate its ends,"a rotatable tool holder U0 at one end of thetool Support, a cam opera tive on the other end to rock the tool support and means for continuously rotating1 the holder. v l

24. A metal Working inaehine including in combination, a work holder, a olaralityoi'v independent tool supports arrangedside by side and each pivoted 'for rocking movement about an intermediate its ends, a rotatable tool' holder mounted on one end olE each of said supports, a shaft arranged ad# jacent the ends oiI am supports 'opposite the toolholders. a plurality of cams on said. shaft or rocking said supports, and means for rotating said tool lioiders.

235i. 'inetal working machine ineinding in combination. a work support, 'tivo rotatable lool holders and means for rotating said holders including a worin wheel operativeiy conneeijed to eaeh holder, anda driving shaft, a portion oi which has a right hand thread assori' tedy with one Worm Wheei and another porM n -a left hand thread assoeiated with the other worm wheel lh-e said shaft subjected to no end thru t.

26. fi. machine tool inrlnding in combinate,

tion, a work supportq tivo tool holders, means 'whereby- [or ieeipi'-irati1ig said support. ,and means f for movin; the tool holders in a path transverse to the path of the support. the direr3-v tion oi' movement o?" ,me holder being always opposite to the direetionot movement oi the il", .la machine 'tool including in -ioinbina!l tiong a work support, tf-,ro tool liolliersn each nieaante movement in a curved path.

ifi' means 'for reciprocating said support, and means for moving said, holders in their rin-red paths. 'the ilirectiain ot movement o? one holi'ler oe ,e always opposite to the direction ol' move-ment of the other.

2H. .i marliine tool including in combine-Y iion, a wm'it'supikiort, two toolliolders. means imi l'or reciprm'ating said support, and means-.

tor moving the tool heidi in a p th trans verse to the path of the support including a rotatable shaft liai'ine; cams 'for actuating said holders constructed to -niove said lioiders in opposite directions.

LS. il. .metal working machine including in combination, a worl( support; pim'alitj,7 of parallel spindles, a tool support mounted or earl; spini'lle for rooling movement. a too holder carried b v earli snpp-ortrior rotation. about an axis eerentrie lo the assoeiai' i spindle axis. means 'for roriing the tool sa fport'. means rvfor rota the spindles anj gearing connecting each spindle and its as-l sociated tool holder.y

30. A 4metal .vorling machine inrlnding in Combination, a work holder. a plnmiloii' o? independent tool supports ar .igedside by side and earl. pivoted for -roeii'ing :novement about an artis intermed rotatable tool holder mounted nl oueend of .the outer frame formed withopenings for means for sliding the I of said cams being arranged to rock a part of said supports in one direction and another group being arranged to simultaneously rock the rest of' said supports in the opposite direction, and means for rotating said tool holders,

31'. A machine of the class described including in combination, a tool holder. a slidable work support comprising an outer rectangular frame and an inner rectangular frame slidably mounted within the outer frame having means to clamp the work and- Imeans for moving the inner frame relative to the outer to adjust the work relative to the tool holder.

32. A machine of the class described including in combination, ay too'l holder, a slidable work support comprising an outer rectangular frame and an inner rectangular frame slidably mounted within the outer frame having means to clamp the work against one side. thereof, said side and the adjacent side ofthe outer frame having registering openings for the tool, and means for moving the inner frame relative to the outer frame to adjust the position ot the Work relativeto the tool holder.

33. A machine of the class described including 4in combination a tool holder, a horizontally slidable worksupport comprising a vertical rectangular outer frame, and a rectangular inner frame vertically slidable in the outer frame having means to' clamp the Work against the bottom side there() said side and the corresponding side of' the tool holder and inner 'frame to adjust the position of the Workrelative to the tool.

34. A machine of the class described infV cluding in combination, a Work holder,'a tool support, means for moving one ot said i -parts towards and from 4the traces a closed other to bring thetoolin contact with the Work, said work support having portions provided with surfaces inclined relative to the axis ot' said tool support, and means for clampingthe Work,Y against said inclined surfaces.'

35. A metal Working machine including in Work support, a tool holder, parts transversely axis of the holder combination, a

to leach other whereby the supportl being mounted for adjustment to and from the holder.

36.A metal working machine including in "combination, a horizontally recipi'ocable i' -rk support, a tool holder below said supt, means to reciprocate the holder across trie support in a path parallel thereto and means to .rotate the holder.

3f?. A machine for finishing compression recesses in cylinder heads including in combination, a Work support on Which a cylinder is adapted to be secured with the comfigure on the support, said.

means for moving said support toward and -fionii said holder whereby the tool carried b v said holder is .positioned in one of the recesses of the cylinder head, aml means 'for rotating said holder.

38. A machine for finishing compression recesses in cylinder heads'including in combination, a work support having surfaces inclined tothe horizontal, means for clamping a cylinder head against said inclined surfaces with the com pression recesses thereof facing down Wardly, means for moving said support to and tro in a` horizontal direction, a tool holder below said support with its axis arranged vertically, means formoving said holder to and fro in a direction transverse to the direction of movement of said support,

the tool carried thereby one of' the compression and means for rotating said holder whereby is positioned Within recesses of the head` the holder.

39. .A machine for simultaneously finishing a plurality of' compression recesses ina. cylinder head including in combination. a work-holder tor supporting a cylinder head a plurality ottool holders spaced a distance corresponding to the recesses in the cylinder head, means for rotating said tool holders, a drive shaft, rotatable means operated con` tinoiisly during rotation of said shaft for moving said wolk-holder to and f'ro in a. direction perpendicular to the axes of' said holders, other rotatable means operated continuously during rotation of said shaft for moving each of said tool holders to and fro in a direction substantially perpendicular to thev direction of movement of said work-holder.

40. A machine for simultaneously finishing a plurality ofl compression recesses in a cylinder head including in combination, aworkdiolder f'or supporting a cylinder head, ay plurality of' toolholders spaced a distance corresponding to the recesses iu the cylinder head, means for rotating said tool holders, a drive shaft, a rotatable cam opera-ted continuously from said drive shaf't tor moving said work-holder to and f'ro in. a direction perpendicular to the axes of said tool lioldei', another rotatable cam continuously operated from .said drive shaft for moving each of said tool holders to and fro in a direction substantially perpendicular tothe direction ofsaid work-holderi In testimony whereof I afilixmy si nature.

LE nov E. J LLs, 

